CVE-2024-40634

Public Exploit
Argo CD Unauthenticated Denial of Service (DoS) Vulnerability via /api/webhook Endpoint

Description

Argo CD is a declarative, GitOps continuous delivery tool for Kubernetes. This report details a security vulnerability in Argo CD, where an unauthenticated attacker can send a specially crafted large JSON payload to the /api/webhook endpoint, causing excessive memory allocation that leads to service disruption by triggering an Out Of Memory (OOM) kill. The issue poses a high risk to the availability of Argo CD deployments. This vulnerability is fixed in 2.11.6, 2.10.15, and 2.9.20.

Category

7.5
CVSS
Severity: High
CVSS 3.1 •
EPSS 0.91% Top 30%
Vendor Advisory github.com
Affected: argoproj argo-cd
Published at:
Updated at:

References

Link Tags
https://github.com/argoproj/argo-cd/security/advisories/GHSA-jmvp-698c-4x3w vendor advisory exploit
https://github.com/argoproj/argo-cd/commit/46c0c0b64deaab1ece70cb701030b76668ad0cdc patch
https://github.com/argoproj/argo-cd/commit/540e3a57b90eb3655db54793332fac86bcc38b36 patch
https://github.com/argoproj/argo-cd/commit/d881ee78949e23160a0b280bb159e4d3d625a4df patch

Frequently Asked Questions

What is the severity of CVE-2024-40634?
CVE-2024-40634 has been scored as a high severity vulnerability.
How to fix CVE-2024-40634?
To fix CVE-2024-40634, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2024-40634 being actively exploited in the wild?
It is possible that CVE-2024-40634 is being exploited or will be exploited in a near future based on public information. According to its EPSS score, there is a ~1% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2024-40634?
CVE-2024-40634 affects argoproj argo-cd.
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